Paul Diel

Paul Diel (11 July 1893 – 5 January 1972) was a French psychologist of Austrian origin who developed the method of introspective analysis and the psychology of motivation.

Diel practiced psychotherapy at the central hospital of Vienna, and in 1935 he sent his work on introspective analysis to Albert Einstein.

In 1938, after the Nazi German Anschluss of Austria, Diel escaped to France and worked at the Sainte-Anne psychiatric hospital in Paris.

Unfortunately, because he was a foreign national, he became imprisoned in the Gurs internment camp in southern France during World War II.

Diel continued working as a researcher and psychotherapist and had trained a group of students and published books on various subjects like education, symbolism and evolution when he died of cancer in Paris on 5 January 1972.